Abstract: A blower includes: a fan; a lower body having an inner space to receive the fan, and a suction hole; a first upper body communicating with the inner space and having a surface with a first discharge hole; a first damper movably coupled to the first upper body and penetrating the surface; the first damper having a first end facing an outside of the first upper body and a second end opposite to the first end; and a first bar extending along and coupled to the second end of the first damper.

Abstract: The present disclosure generally relates in certain embodiments to a combined cycle power plant system comprising an electrochemical compressor. For instance, in one set of embodiments, the electrochemical compressor is may separate oxygen from a flow of air from an air source to provide a pressurized flow of oxygen to a combustor. In some embodiments, the resulting combustion products may only include oxygen and water without any substantial fraction of other combustion products or contaminants which may facilitate the separation of carbon dioxide (CO2) for subsequent processes including compression and/or storage.

Abstract: An air intake passage structure includes an outer cover forming an outer wall of an outboard motor, an inner cover disposed inside the outer cover, a first intake port formed in the outer cover, a second intake port formed in the inner cover, an air introduction chamber formed between the outer cover and the inner cover; and an air passage formed inside the outer cover. The air passage includes a first passage part on an upper side of the air introduction chamber, and a second passage part extending downward from the first passage part. The air introduction chamber includes a side portion communicating with the first intake port, and a top portion communicating with the first passage part through an opening formed in the partition wall.

Abstract: A symmetric governor spring includes a first ring and a second ring coaxial with the first ring. The symmetric governor spring also includes two or more inclined braces connecting the first ring to the second ring. The first ring, the second ring, and the two or more inclined braces are integrally formed.

Abstract: A rocket engine propulsion system having improved engine performance is described herein. The rocket engine propulsion system includes multiple axial counterbalances to reduce or eliminate axial thrust exerted on components of a turbopump. The axial counterbalances can allow for a larger range of axial thrust forces while coupling this ability to a rotational speed (e.g., rotations per minute, or RPM) of a shaft. The axial counterbalances include protrusions that extend circumferentially around a shaft that mate with protrusions on swing arms. The swing arms are rotatably attached to a bracket which is constrained by a static support.

Abstract: A rocket engine propulsion system having improved engine performance is described herein. The rocket engine propulsion system includes an axial counterbalance to reduce or eliminate axial thrust exerted on components of a turbopump. The axial counterbalance can allow for a larger range of axial thrust forces while coupling this ability to a rotational speed (e.g., rotations per minute, or RPM) of a shaft. The axial counterbalance includes a protrusion on that extends circumferentially around a shaft that mates with a protrusion on a swing arm. The swing arm is rotatably attached to a bracket which is constrained by a static support.

Abstract: Electric drive (100, 200, 300, 400) for a vehicle, comprising: at least one hollow shaft (101, 201, 301, 401) mounted for rotation about an axis of rotation; at least one rotor unit (102, 202) being arranged rotationally fixed with the hollow shaft (101, 201, 301, 401); at least one coolant circuit being provided at least partially between the hollow shaft (101, 201, 301, 401) and the rotor unit (102, 202); the coolant circuit comprising at least one cooling section (105, 205) being provided adjacent to the rotor unit (102, 202); and wherein the cooling section (105, 205) has an increasing radius at least partially along its extension parallel to the axis of rotation.

Abstract: An air cooled machine is formed with a housing and a plurality of heat rejecting fins with a heat pipe system disposed therein. The heat pipe system includes a primary passageway and a plurality of leg passageways extending through the housing and into each fin. A working fluid is disposed within the heat pipe system and is operable to receive heat from a heat source, change material phase at a threshold temperature and transfer the heat through the fins to a surrounding atmosphere.

Abstract: A powertrain-cooling system of a hybrid vehicle may include an electric oil pump, a pressure control valve, which includes an input port receiving fluid discharged from the electric oil pump, an output port outputting the fluid to a transmission while adjusting the pressure of the fluid, and a drain port discharging a portion of the fluid in accordance with adjustment of the pressure of the fluid, a first motor cooling path connecting the drain port of the pressure control valve to a first motor forming a hybrid powertrain, and a controller electrically connected to the electric oil pump and configured for controlling the electric oil pump to cool the transmission and the first motor.

Abstract: A pair of engine mounting brackets for an All-Terrain Vehicle (ATV) is provided. The engine mounting bracket includes the following: a first portion having a mitten shape; a hole in a fingertip portion of the mitten shape; a hole in a thumb portion of the mitten shape; a second portion parallel to the first portion; a middle portion interconnecting the first portion and the second portion at first and second interfaces, respectively, the middle portion being oriented transversely relative to the first and second portions wherein the first portion and the second portion are parallel to each other; and a middle hole in the middle portion just downward of the first interface, wherein the first portion, the second portion, the holes of the first portion and the middle hole being mirror images of each other relative to each engine mounting bracket of the pair though not the middle portions.

Abstract: A hypersonic aircraft includes one or more leading edge assemblies that are designed to manage thermal loads experienced at the leading edges during high speed or hypersonic operation. Specifically, the leading edge assemblies may include an outer wall tapered to a leading edge or stagnation point. The outer wall may define a vapor chamber and a capillary structure within the vapor chamber for circulating a working fluid in either liquid or vapor form to cool the leading edge. In addition, a thermal enhancement feature can enhance a heat transfer from the outer wall at the leading edge to the outer wall within the condenser section of the vapor chamber.

Abstract: Provided are embodiments for a feeder cooling tube, a system and method for performing thermal management. Embodiments include a feeder cooling tube having an inner tube arranged to define a path to flow a fluid through a length of the inner tube, wherein the fluid is provided to remove heat, and an outer tube arranged to enclose the inner tube which defines an area. Embodiments also include one or more feeder cables arranged between the inner tube and the outer tube, and a plurality of cooling struts, wherein each cooling strut of the plurality of cooling struts extends from a surface of the inner tube to a surface of the outer tube.

Abstract: An air cleaner for an internal combustion engine is disclosed. The air cleaner may include a housing defining an interior and having a first end and a second end opposite the first end. The housing may include an air inlet configured to be fluidly coupled to an air intake of the internal combustion engine and an air outlet configured to be fluidly coupled to a compressor of the internal combustion engine. The housing may include a general cylindrical shaped section extending from the first end and an inverse taper section located distally from the generally cylindrical shaped section and extending towards the second end. A diameter of the inverse taper section may increase from a first end towards the second end.

Abstract: A heating channel for a front wall of a dump body comprises an exhaust inlet provided on the front wall; an exhaust outlet provided on the front wall; and a channel body running continuously from the exhaust inlet to the exhaust outlet. The channel body can have at least one horizontally extending portion and at least one vertically extending portion in a front view of the front wall. The exhaust inlet can be configured to receive exhaust gas output from an internal combustion engine, and the exhaust outlet can be configured to output the received exhaust gas to outside the heating channel.

Abstract: A radiation-assisted (typically solar-assisted) electrolyzer cell and panel for high-efficiency hydrogen production comprises a photoelectrode and electrode pair, with said photoelectrode comprising either a photoanode electrically coupled to a cathode shared with an anode, or a photocathode electrically coupled to an anode shared with a cathode; electrolyte; gas separators; all within a container divided into two chambers by said shared cathode or shared anode, and at least a portion of which is transparent to the electromagnetic radiation required by said photoanode (or photocathode) to apply photovoltage to a shared cathode (or anode) that increases the electrolysis current and hydrogen production.

Abstract: A camshaft includes, as a cam that opens and closes an exhaust valve and an intake valve, a ball cam whose protrusion amount changes according to rotation of the camshaft, wherein the camshaft has a double structure consisting of an inner shaft and an outer shaft provided in a manner that the inner shaft is helically displaced with respect to the outer shaft around an axis of the camshaft according to a rotation speed of the camshaft, and the ball cam is accommodated movably in a guide groove provided in the inner shaft and protrudes from the outer shaft, and a protrusion amount of the ball cam from the outer shaft changes when the ball cam moves in the guide groove due to the helical displacement of the inner shaft with respect to the outer shaft.

Abstract: A tool changer in accordance with the present disclosure comprises: a housing fastened to a manipulator of a robot, wherein the housing is a non-magnetic material; a bar-shaped magnet disposed in the housing; a motor configured to rotate the magnet on a rotation shaft perpendicular to a longitudinal direction of the magnet; and a core configured to derive a path of a magnetic flux by the magnet. The core comprises: a pair of first poles facing both poles of the magnet, when the magnet rotates to be elongated in a first direction; a bridge configured to connect the pair of the first poles and disposed in the housing, wherein the bridge is a magnetic material; a pair of second poles facing the both poles of the magnet, when the magnet rotates to be elongated in a second direction perpendicular to the first direction; and a pair of terminals connected to the second poles and facing a magnetic body disposed outside the housing.

Abstract: A supercharging device having a housing, at least one impeller, and at least one axial bearing having first and second bearing surfaces. The impeller here forms one of the bearing surfaces of the axial bearing.

Abstract: A feed-through assembly for a bulkhead for moving and static engine components. The feed-through assembly can be configured to include flexible convolutions that allow for movement and sealing of the engine component relative to the bulkhead. In one aspect, a flexible convoluted spherical element can be provided in the feed-through assembly. In another aspect, a flexible convoluted bellow element can be provided in the feed-through assembly. These flexible convoluted elements can have multiple convolution sections including convolution sections with varying stiffness. The convolution sections can be configured to allow movement of the shaft relative to the bulkhead, including, transverse deflection and tilt.

Abstract: A method is usable for cooling portions of a vehicle having a plurality of low temperature radiators (LTR), a rechargeable energy storage system (RESS), an i-condenser coolant circuit, and a RESS coolant circuit. Cooling the RESS occurs by comparing ambient temperature to target low and high temperatures. If the ambient temperature is below the target low temperature, coolant flow is routed through a first flow path placing the first and second LTR in the RESS coolant circuit. If the ambient temperature is between the target low and high temperatures, coolant flow is routed through a second flow path placing the first LTR in the RESS coolant circuit and the second LTR in the i-condenser coolant circuit. If the ambient temperature is above the target high temperature, coolant flow is routed through a third flow path placing the first and second LTR in the i-condenser coolant circuit.